Descritpion:
Multi-stage external canister filtration with UV sterilisation for aquariums up to 350 litres.
The Giantz 1850L/H External Canister Filter runs at 1,850 litres per hour on 35 watts, with a separate 9W UV lamp that targets free-floating algae and waterborne pathogens that mechanical and biological filtration alone can't catch.
External canister filters work by drawing water from the tank through an inlet, passing it through sealed, pressurised media baskets, and then returning filtered water through an outlet. The canister sits outside the tank entirely, keeping your aquascape clean and uncluttered. The UV steriliser targets free-floating algae and waterborne pathogens that mechanical and biological filtration alone can't catch, reducing disease risk and keeping water visibly clearer.
This model features three-stage filtration with easy-access media baskets, an included media kit so you're not starting from scratch on media selection, quick-connect hose fittings, and a tight cap lock to prevent leaks. A maximum head height of 2.0 metres covers most standard aquarium setups. Built for long-term reliability in both freshwater and saltwater environments.
Suitable for freshwater and saltwater aquariums up to 350 litres.
Product Features:
- Efficient external filter with up to 1850L/h flow rate
- UV light sterilization to eliminate harmful microbes
- Suits both freshwater and saltwater aquariums
- Suitable for aquarium tanks of up to 350 litres
- Ultra-fine 3-stage filtering basket
- Bonus filter media: Bio-ball and ceramic rings
- Low power consumption
- Tight cap lock to prevent leakage
- Complete set of accessories: Pump, hoses, pipes and media
- Easy-install inlet and outlet connectors with flow control switch
Product Specifications:
- Voltage: 240V/50Hz
- Filter power: 35W
- UV power: 9W
- Maximum height: 2m
- Flow rate: Up to 1850L/h
- Inlet size: 16mm
- Outlet size: 22mm
- Hose size: 2x 1.5cm x 180cm
- Overall dimensions: 25.8cm x 25.8cm x 43cm
*This Product is backed by a 1 Year Warranty
Items Included:
- 1x External Filter
- 3x Filter Media Pack
- 1x Pipe Set
- 2x Hose
Giantz External Canister Filter with UV Steriliser - 1850L/H + Media Kit
Giantz External Canister Filter with UV Steriliser - 1850L/H + Media Kit
Out of stock
Everything about shipping, specifications and warranties is just below.
Why Shop With Us — Our Guarantee & Shipping Info
Why Shop With Us — Our Guarantee & Shipping Info
✅ Quality Products - Reliable aquarium supplies for your setup.
🚚 Standard Shipping Up to 10 kg ($11.95 to $24.95): Delivery within 3 to 10 business days. Rates by order weight: up to 1.5 kg $11.95; 1.5 - 2.5 kg $14.95; 2.5 - 4 kg $16.95; over 4 - 7 kg $19.95; 7 - 10 kg $24.95.
🚚 Heavy & Bulk Shipping Over 10 kg ($34.95 to $59.95): Delivery within 3 to 10 business days. Rates by order weight: 10 - 15 kg $34.95; 15 - 20 kg $44.95; over 20 kg $59.95.
Shipping is calculated at checkout based on the combined weight of dry goods in your order.
🛡️ Warranty Support - Most eligible equipment and accessories are backed by a 1-year manufacturer warranty, with claims handled through us.
🔄 Easy Returns - Most unopened dry goods can be returned within 14 days for change of mind, subject to our return conditions.
🤝 Trusted Couriers - Reliable delivery at a great rate.
💬 Expert Support - Got Questions? Chat with us anytime for advice!
🐟 Adding fish to your order? - Fish, Food and Plants ship separately from our dry goods collections with our Live Arrival Guarantee. When ordering from both our dry goods and fish/food/plant collections, both shipping fees will apply (example: $30 fish & food + $11.95 dry goods = $41.95 total).
👉 For more details visit our Shipping page.
Tips Before You Buy — Product Guidance
Tips Before You Buy — Product Guidance
💡 Unsure which product is right for your tank? Visit our Education section or Blogs for help choosing the best equipment.
🐟 Beginners can start with: How to set up your aquarium, while everyone can check out Aquarium Maintenance & Care for ongoing tank tips!
🌿 Not all products are suitable for every tank size - Double-check dimensions and specifications before purchasing.
✍️ If you’re stuck: Reach out through our chat, we’re always happy to help!
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How the Giantz External Canister Filter Compares
⚙️ Giantz External Canister Filter with UV
- 🧺Multi-Stage Filtration: Uses multiple filter stages and media baskets to separate different stages of mechanical and biological filtration within the canister.
- 📦More Media Capacity: The external canister design provides dedicated space for multiple types of filter media, allowing you to build a filtration setup around your aquarium's needs.
- 🌿Keeps Equipment Outside the Tank: The filter body sits outside the aquarium, leaving more of the display area available for fish, plants and aquascaping.
- 💡Integrated UV Sterilisation: The built-in 9W UV lamp provides an additional treatment stage designed to target free-floating microorganisms and algae in the water.
- 🔧Customisable Media Setup: Accessible media baskets make it easier to choose, arrange and maintain different types of filtration media alongside the additional UV stage.
⚪ Basic External or Internal Filter
- 🧺Filtration Without Integrated UV: A standard filter can provide mechanical and biological filtration, but does not provide the additional UV treatment offered by these Giantz models.
- 💡UV Requires Separate Equipment: Adding UV treatment to a standard filtration system generally means purchasing and installing a separate UV steriliser.
- 📦Less Integrated Equipment: Filtration and UV treatment are handled by separate components rather than being combined within one filter system.
- 🔧More Components to Install: A separate UV unit requires additional connections, equipment and space within your filtration setup.
- 🌿More Equipment Around the Aquarium: Adding separate filtration and UV equipment can mean more components to accommodate around or beneath the aquarium.
The media kit inclusion removes a common friction point for aquarists setting up a canister filter for the first time. Combined with UV sterilisation at this price point, it's a complete filtration solution for mid-sized tanks that doesn't require sourcing additional components before you can get started.
Clean the spiral propeller and casing periodically to prevent heavy debris build-up, which can reduce flow and strain the motor over time. Always disconnect from power before handling. If the pump stops unexpectedly, check for blockages first, the built-in overheat protection will cut the motor if it runs too hot, which is usually a sign something is restricting flow. Clearing the blockage and allowing the motor to cool before restarting is all that's typically needed. Replace the UV globe annually or when you notice a drop in water clarity despite clean mechanical media. UV globes degrade over time and lose effectiveness before they stop working entirely, so annual replacement is good practice regardless of whether the lamp still appears to be on. UV replacement globes are available from most aquarium retailers or online. Check your model's specifications for the correct wattage before purchasing.
Frequently Asked Questions
How do I choose the right Giantz canister filter?
Choose the model based on your aquarium size, required flow rate and the available space for the filter. The range includes a 1,250L/H model suitable for aquariums up to 250 litres, a 1,850L/H model suitable for up to 350 litres, and a 2,400L/H model suitable for up to 500 litres. Actual flow will vary depending on head height, hose length, fittings and other system restrictions.
What is an external canister filter?
An external canister filter sits outside the aquarium and draws water through an inlet, passes it through multiple layers of filter media inside the sealed canister, then returns filtered water to the tank through an outlet. This keeps most of the filtration equipment outside the aquarium and helps keep your aquascape uncluttered.
What is the difference between the three models?
The main differences are flow rate, recommended aquarium size, power consumption, head height and hose connection sizes. The 1,250L/H model is suited to aquariums up to 250 litres, the 1,850L/H model up to 350 litres, and the 2,400L/H model up to 500 litres. The 1,850L/H and 2,400L/H models also include a built-in 9W UV steriliser.
Which models have a UV steriliser?
The 1,850L/H and 2,400L/H models include a built-in 9W UV steriliser. The 1,250L/H model does not include UV.
What does the UV steriliser do?
The UV steriliser exposes passing water to UV light, which can help control free-floating algae and some waterborne microorganisms. It works alongside mechanical and biological filtration rather than replacing either one.
What type of filter media can I use?
The canister filters use multiple stages of filtration and can accommodate different types of mechanical, biological and chemical media. The 1,850L/H and 2,400L/H models include bio balls and ceramic rings to get you started, while additional media can be selected to suit your aquarium setup.
Can I use filter media bags with these canister filters?
Yes. Loose media such as bio balls, ceramic rings or activated carbon can be placed into suitable filter media mesh bags to keep each type contained and make maintenance easier. Make sure the bags are positioned so they do not restrict water flow through the canister.
What does the maximum head height mean?
Maximum head height refers to how high the filter can move water vertically. The 1,250L/H model has a maximum head height of 1.3 metres, the 1,850L/H model has a maximum of 2 metres, and the 2,400L/H model has a maximum of 2.5 metres. Actual flow decreases as the water needs to be lifted higher.
Can I adjust the water flow?
Yes. All three models feature flow control on the inlet and outlet connections, allowing the water flow to be adjusted to suit your aquarium and livestock.
Are these canister filters suitable for freshwater and saltwater?
Yes. All three Giantz external canister filters are suitable for both freshwater and saltwater aquarium systems.
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